Two-cycle gas-engine.



Ur. W. RHODES. TWO-CYCLE GAS ENGINE. APPLWATION FILED JUNE 27,1913.

1 1 1 1 ,495, Patented Sept. 22, 1914.

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a 6/ $1 20a i l 1 I M I I WITNESS/1,) [Nil 51V 70R A ltarmys G. W. tgnuuns; TWO-CYCLE GAS ENGINE.

AIPLIGATION FILED JUNE 27,1913.

A T 1E 72 2H 2 6m H S %3 b n 6 t a P ,I I F 5 9 4 1 1 1 A mung s WITNESSES G. W. RHODES.

TWO-CYCLE GAS ENGINE. APPLII TION TILED JUNE 27.1913.

1 1 1 1 ,495, Patented Sept. 22, 1914.

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GUY WOBTHINGTON RHODES, OF AUBURN,

TEBRASKA.

TWO-CYCLE GAS-ENGXIQ'E.

Application filed June 27, 155

Specification of letters I'etent.

Pm met-u Sept. 22. um.

Serial No. 6.,

To all whom it may concern:

Be it known that I, GUY lVoRTHINoroN Rnoons, residing at Auburn, county of- No maha, State of Nebraska, a citizen of the United States, have invented certain new and useful Improvements in Two- Cycle Gas-Engines; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will onable others skilled in the art to which it pertains to mzike and use the same.

My inventionrelates to improvements in gas engines and more particularly to the two-cycle t pe.

One of t 0 objects of the invention to provide a gas engine having means for ad mitting the explosive mixture and expelling the burned gases at approximately the time when the piston has reached the end of its outward stroke.

Another object is to rovide a gas engine with means whereby the passage of gases into and out of the storage, explosion and compression cylinders is positively controlled at all times.

Another object is to provide a gas engine in which the piston, the inlet and exhaust valve of the piston cylinder and the gas in let distributing valve are operatively connected togcthet.

Another object is to provide a gas engine with a piston which operates both in the ex plosion and gas compression chamber.

Another object is to provide a gas engine in which the Waste of the explosive mixture is prevented by suitable means which propi-rly times the exhaust with relation to t. e inlet.

Another object is to provide a gas engine which will Work equally as Well at high as at low speeds.

Another oh cct is to provide a. gas engine which is simple inexpensive, durnbie, com pact and economical in construction and ex,- ceedingly easy and efl'ective in operation.

Referring to the drawings :-l igurr 1 is :1 central vertical Section showing the several parts in he. positions they assume when the pistol".-

at the cud of its upwurd or ("1:12-- prcss on stroke. Fi 2 a central vcrliml sec ion, similar to in". 1, showing the sc' 5 erul parts in the positions they as ume when the piston is at the end of its downward or explosion stroke. Fig 3 a side clevntiou portly broken nwny and in section. lig. 4 an end elevation portly broken away and in section. Fig. i ii ale-toil side view of the inh-L and cx'lmust s'ibi 'l of the piston cylinder.

, Fig: 6 n detnil s-ie' iouul view of the inlet I and exhaus \ulve of the piston cvlinder. l

Fig. I a. Sc-siionul irw of the gas inlet valve. li". :1 mp pin-"i ivi; of the sliduble cylindrical wire.

in the druwiug in which similar reference characters denote similar parts throughout the several vicws, 1 represents my gas engine having: a casing made prefer-- ably in four parts or sections -2. 3, 4 and 5 secured together by means of bolts 6 or other suitable means. The part 4 constitutes the piston cylinder of the engine and is provided with walls I having a space 8 between them for water, or any other suitable cool ing medium. by which the piston.cylimlcr and the parts therein nro'kept cool. The lower end oi" the piston cylinder is enlarged as shown at 9 and forms, with the piston hereinafter described. a gas compression chamber 10 and just above this enlargement 9 the piston cylinder is rovidcd with :1 series of exhaust ports ll null at its upper end is provided with a series of inlet openings 12. The series of inlet ports 12 communicute with a circular passage 13 at the upper portion of the piston cylinder and the series of exhaust ports 11 communicate with o circulnr passage it which is in communication with an exhaust pipe 15. The circular pnssage 13 is connected by-mcuns of a pipe 16 with :1 casing 17 having inlet passage 18in! the admission of {Ins mm a carbureter, or any other suitable source of supply and-a port 19 connects snid easing; 17 with the gas compression chamber 10 in the enlarged portion 9 of the piston cylinder. The pipe 16 serves to retain the combustible gas under initial pressure so that it will instantly flow into the combustion chamber upon the reeds tcring oi the inlet portsof the piston cylinder will. the inlet ports of the cylindrienl' valve.

rotatable as inlet and distribution alve 21') provided in the casing 17 which controls the supply at gas, and when in the urflion siwwn in Full lines. in Fig. 9, it snppliw gas throuarh the port ill to the gas cose'pn nn chunmcr in the piston oylinder. l 1 wi e in in the pos .ion shown by du l, from iii;

F. gas romprci .ion chamber into pipe is, sud when an the DOSlllOll shown'by dotted lira, :13. it cans oil the supply of gas.

1 Lil it ullows, the passage of gas The part 5 of the casin constitutes the cylinder head and is provi ed with walls 24 having aspace 25 between them for water, or any other suitable cooling medium by which it 1s kept cool, a chamber 26 in which is located spaced disks 27 and 28 secured on shafts 29 and 30 respectively mounted in bearings 31. The cylinder head extends into the upper end of the piston cylinder, terminating in a convex end 82 inlet (ports 12 of the said cylinder, and is space from the inner wall of the cylinder as shown at 33. A spark plug 34, of-any well known make, is secured in theeonvex end 32 of the c linder head.

A cylin rical valve 35 provided with a series of inlet ports 36 and exhaust ports 37 is slidably mounted in the piston cylinder with its upper end extending between the inner wall of the cylinder and the outer wall of the cylinder head and is operatively connected to the disks 27 and 28 by means of a link 38 the lower end of which is pivoted at 39 to said valve 35 and the upper end pivoted between the disks 27 and 28 on a in 40 eccentrically mounted in said disks y which a reciprocatory movement is imparted to the valve 35 when said disks are 'rotated to cause the inlet and exhaust ports of the piston cylinder to be moved into and out of registry with the ports of the said valve 35. The exhaust'ports of the piston cylinder and the valve 35 are preferably made larger than the inlet ports of the piston cylinder and valve 35 for the purpose of allowing the exhaust ports to open in advance of the inlet ports but the may be made of the same size if desired. he iston 41 is spaced from the walls of the en arged portion 9 of the piston cylinder and extends 1nto the lower end of t e valve 35 and is provided with an enlar ed portion 42 slidably contacting with t e wall of the enlarged portion 9 of the piston cylinder. Packing rings 43 are provided in the cylinder, the cylinder head and piston to insure tight oints between them. The convex surface 32 of the cylinder head serves to deflect the combustible gas, introduced through the inlet ports, downward in' a compact body and assists in the expulsion of the exploded gases through the exhaust ports, and the convex surface of the piston serves to deflect or direct the exploded gases through the exhaust ports. The parts 2 and 3 of the casing constitute the crank casing 44 of the engine and 45 s an outlet or drain for lubricant in the part 2.

A crank shaft 46 is mounted in the crank casin in bearings 47 and is operatively connected n the piston by means of the connecting rod 48 the upper end of which is pivoted on a in secured to the piston and the lowerend pivoted on the crank shaft. The shaft 29 and the crank shaft 46 are opust above the said valve which enga s a worm 56 on the shaft 49. The shaft 49, vol

81850 51 5B 53, worm gear 54 and worm b?! iiicldsed by a casin 57. i

A fly w eel 58 is providedmr one end of the crank shaft 46 and the other end with a removable handle 59 to be used for P om. v v p g 0 operation of the engine is as folk: Assuming that an explosion has just place in the combustion chamber asthe 11 starts on the outward stroke the" gas inlet and distributor valve 20 o the port 19 permitting the to flow cm the carbureter throug the inlet passage 18 into the gas compression chamber 1,0 and as the piston starts on the return stroke the valve 20 closes the inlet passage 18 from the carbureter and at the same time opens the ort 19 and allows the gas to enter the initial compression pipe 16 where it is confined by the valve 20 closing the entrance'at or about the time the piston reaches the end of its inward stroke. At this time the previous charge of gas in the cylinder has been co pressed by the piston and as it is e l it drives the piston outward and as t e piston reaches the extent of its outward stroke the function of the slidable valve 85 comes into play and said valve is loweredcausing the exhaust ports to register, thus ermitting the exp oded gases to escape-t the exhaust passages or ports and the s downward movement of the valve 35 causes the inlet ports to register thus permittin the combustible gas to pass from the initi compression pi e 16 through the inlet ports into the com ustion chamber and as it strikes the convex surface of the cylinder its head it is deflected downward in a more or less compact body thus completing the expulsion ofthe exploded gases by driving .them down and out through the 0 on exhaust ports, the exhaust gas is then s ut out and the combustible gas confined within the explosion chamber by means of the slidable va ve 35 rising so as to put both the exhaust and inlet ports out of registry, said action taking place at or about the time the piston starts on its inward stroke. The char 0! gas is now read to be compressed wi the return stroke 0 t e piston, after which it is exploded and ifl turn forced out by the incoming of the nest ch rge which has filled the initlal com ression inpe in the manner before describe ing myselr to the specific details of -onstrue tion and arrangenu-nt as herein described and illustratwl. as itis manifest that variations and modifications may he made in the features of eonstrnetion and arrangement in the adaptation of the device to various eondltions of use without departing from the spirit and scope of my invention and improvements. to all sat-h ariations and nnalitieations as properly fall within the .\((l[)t of my invention and the terms of the following claims.

. What I claim is: i

1. In a gas engine, a piston. a piston eylinder inning inlet and exhaust ports a slidahle cylindrieal valve therein having inlet and exhaust ports. a roinpression ehamlier, an initial gas .\l l'.t 1 "t ehandwr eonnnunieatins; with the inlet p rts of the e \linder. a. \Z|l\'t lit-tween aiil ehanilvers. ntrolling the inlet of gas int the ('otltpreSSlml ehamher and the passage of g: therefrom into the initial storage chamber. a powershaft with which said pistun is runner-ted and a shaft operatively ronneetin e said lltl1llll(, e \lin-- drieal valve. valve and power shalt. suhstan tallyns deserihed.

J. ln a gas engine, a piston e vlinder havin; inlet and exhaust ports and enlarged at its lower end. a piston operatalile in said piston cylinder and having an enlarged portion \vhieh tits and eontaets with the enlargetl portion of the piston eylinder and fort-us (.lltltllthVUttl a gas compression chainher, a eylindrieal valvtg mounted in such manner as to lie out of contact with the enlarged portions of the piston cylinder and piston slidablo between the upper por ti n ol the piston cylinder and the. piston and ha ving inlet and exhaust ports, an initial flag: storage. chamber ronimnniratin; with the inlet ports of the (:vlilulel: n {Ins inlet valve lvet ween said compression elianilierzilul storage rhalnlver eontrolling the inlet of gas into the compression ellalnlien la-tneen the enlarged portions of the. piston cylinder alul i toiiqii'nl the passage ol gas into the ini liai storage ehalnlien a '|m\ \'1'| shaft and a shalt operatively eonneeting; said slidalvle l theref re reserve the right cylindrical valve, gas inlet valve and po' tfler siaft, substantially as described. 4

3. In a gas engine, a piston cylinder having inlet and exhaust ports and enlarged at one end forming a gas compression chem-- her, a gas storage chamber communicating with the inlet ports of,'the cylinder, 1:. cylindrical slidable valve in said-piston cylinder having-inlet and exhaust orts, a si 1e is ton which fits and operates within ties id: able eylimlrieal valve' havingvan enlarged portion which fits and operates, within the enlargedportion of the piston cvlindeigand serves to com ress the gas in tiega's compression chamller, a rotatable gas inlet valve adapted to supply gas to the gas dampnesion chamber an from thence supply it to the piston c linder and means operutive'ly connecting t 1e cylindrical valve, pistdn and rotatable gas inlet valve; substantially as described. I

- 4. In a gas'engine, apiston cylinder having inlet and exhaust ports and .e nlar d at its lower end, a cylindricalslidable vafieof substantially the same diameter from end toend. in said piston cylinderhaving inlet and exhanst ports,n piston operatively monnteg within said cylindrical slidable valvean having an enlarged lower end, a gas bornpressmn chamber formed between the enlarged portion of the piston cylinder a-nd the enlarged portion of the 'plSt0Il,l\"t\S storage ehamher communicating with the inlet ports of the cylinder, a passage forming a communication between the gas compression ehaniher and gas storageehamher, a gus in' let valve in said passage, for controlliti 1 the supply of gas to the gas emnpressi 'm enunher and from the gas eomprewion chamber to thegas storage. chamber. and means opel- :lti\el connecting said slidalile eyliut'lrieal valve, gas inlet valve and piston, substantially as described.- i 2 ln ltslillllbll) whereof, l allix n' yflsigtmture in the presence of two witnesses.

(lllY \l'Ult'llllXll'lUX. RHODES. \Yit lH'sst-s: i

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